A consortium of gas companies headed by Pluspetrol and including Hunt Oil, plans on detonating approximately 38 tons of explosives in the south-east Peruvian Amazon in one of the most biodiverse regions in the world.

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The detonations are part of 2D and 3D seismic tests planned by Pluspetrol in its search for new gas deposits in the Camisea region—plans that are currently pending approval by Peru's Ministry of Energy and Mines (MEM).

According to a series of 'fact sheets' recently issued by Pluspetrol, the tests will require approximately 38 tons of explosives, the construction of 80 heliports, roughly 1,200 workers, and about 9,500 explosions, each one 15 meters underground.

Almost three-quarters of Pluspetrol's concession, called Lot 88, is superimposed over the supposedly 'intangible' Kugapakori-Nahua-Nanti Reserve (KNNR), established in 1990 to protect the land and lives of indigenous peoples in 'voluntary isolation' and 'initial contact.'

The KNNR is immediately to the west of the world famous Manu National Park, where UNESCO says the biodiversity "exceeds that of any other place on earth," and acts as part of its official buffer zone.

The 2D tests will involve the "acquisition of 197km in nine seismic lines," states Pluspetrol's fact sheets, and the 3D tests will cover "an area of 379 square km," including "90 receiver lines and 35 source lines representing 870 km and 742 km of temporarily intervened length."

According to a map accompanying the fact sheets, some of the lines will be in titled indigenous communities bordering the KNNR but the majority will be in the reserve itself and Manu buffer zone.

An Environmental Impact Assessment (EIA) of Pluspetrol's plans submitted to MEM last November states that the 2D and 3D tests would be conducted at the same time, but according to the fact sheets that has now changed.

"The 3D Seismic project will not be performed simultaneously with the 2D Seismic project," one fact sheet states, before going on to say that the 3D tests will take place in 2015 but providing no anticipated starting date for the 2D.

The tests will involve constructing four sub-base camps, three of which, according to the EIA, will be in the KNNR and Manu buffer zone and will provide accommodation for 200 people and include offices, recreation areas, heliports and storage for the explosives.